Demography and ecology of Norway rats, Rattus norvegicus, in the sewer system of Barcelona (Catalonia, Spain)

Norway rats are an important commensal species of human settlements. They are abundant in urban areas and generate several problems to our societies. Integrated rat management programs, based on detailed knowledge of its biology, are needed to keep rat populations under control. One of the main habitats of rats in cities is the sewer system. Unfortunately, very few studies have been conducted on sewer rats due to the logistic challenges of such...